#EDIT: also to be clear each cycle is 8 beats all in a row. there's no pause between the pus spawns and the flickers. it's continuous

[dravidious]

Trauma Center GUILT OC - Codename: Metronome

Metronome consists of four cores that remain stationary on the organ. Its cycle of activity consists of a pair of sequential patterns. First, the cores will each spawn a cloud of pus over themselves, one at a time in a random order with a steady rhythm, each spawning accompanied by a sound effect. Then, following the same order and rhythm, each core will briefly flicker, making a sound and dealing minor vitals damage. After each core has flickered, there will be a few seconds delay, then the cycle will begin again.

To treat Metronome, the scalpel must be used to cut each core during its flicker, causing that core to shrivel up. This will also interrupt the cycle and stop the other cores from flickering, so you can only land one hit per cycle. Using the scalpel on a non-flickering core will interrupt the cycle, cause large vitals damage, and spawn pus clouds in random locations.

Shriveled cores will still spawn pus clouds, but they will not flicker or make a sound during the flickering stage, making it more difficult to keep track of the rhythm.

Once all four cores are shriveled, Metronome will make its last stand. First, each core will begin vibrating. This has a rhythm and random order just like its normal activity, but no pus clouds spawn. Then in the same order, each core will briefly flash, and during this moment they must be injected with an antiserum. If any core is left uninjected, or if an injection is mistimed, moderate vitals damage will occur and several pus clouds will spawn, and the attack will repeat in a few seconds. Once all four cores are successfully injected, Metronome will be defeated and can be excised and extracted.